InfiniBand Network Architecture

Software Times Return of MAD Response

When the SM or a GSM issues a request MAD that should cause a response MAD to be returned, the manager software entity rather than the SMI or GSI is responsible for starting a timer upon issuance of the request MAD. If a response is not received before the timer expires, the software-based management entity is responsible for retrying the request MAD transmission. How many retries are performed and what actions are taken when retries are exhausted is outside the scope of the specification.

The software management entity derives the timeout from the following:

• Each port on a CA or a router and the management port on a switch implements the following two attribute elements:

  - PortInfo.SubnetTimeout attribute ...